List of Parliamentary constituencies in County Durham

  † Conservative   ‡ Labour

Constituency[nb 1]	Electorate[1]	Majority[2][nb 2]	Member of Parliament[2]		Nearest opposition[2]		Electoral wards[3][4]	Map
Bishop Auckland CC	68,170	7,962		Dehenna Davison†		Helen Goodman‡	Durham County Council: Barnard Castle East, Barnard Castle North, Barnard Castle West, Bishop Auckland Town, Barningham and Ovington, Byerley, Cockfield, Cockton Hill, Cotherstone with Lartington, Coundon, Dene Valley, Eggleston, Escomb, Etherley, Evenwood, Gainford and Winston, Greta, Hamsterley and South Bedburn, Henknowle, Ingleton, Lynesack, Low Spennymoor and Tudhoe Grange, Middlestone, Middleton-in-Teesdale, Ramshaw and Lands, Romaldkirk, Spennymoor, Startforth, Streatlam and Whorlton, Sunnydale, Thickley, Tudhoe, West Auckland, Woodhouse Close.
City of Durham CC	71,271	5,025		Mary Foy‡		William Morgan†	Durham County Council: Bearpark and Witton Gilbert, Belmont, Brancepeth, Langley Moor and Meadowfield, Brandon, Carrville and Gilesgate Moor, Cassop-cum-Quarrington, Coxhoe, Crossgate and Framwelgate, Deerness, Elvet, Framwellgate Moor, Neville’s Cross, New Brancepeth and Ushaw Moor, Newton Hall North, Newton Hall South, Pelaw and Gilesgate, Pittington and West Rainton, St Nicholas, Shadforth and Sherburn, Shincliffe.
Darlington BC	66,397	3,294		Peter Gibson†		Jenny Chapman‡	Darlington Borough Council: Bank Top, Central, Cockerton East, Cockerton West, College, Eastbourne, Faverdale, Harrowgate Hill, Haughton East, Haughton North, Haughton West, Hummersknott, Lascelles, Lingfield, Mowden, Northgate, North Road, Park East, Park West, Pierremont.
Easington CC	61,182	6,581		Grahame Morris‡		Clare Ambrosino†	Durham County Council: Acre Rigg, Blackhalls, Dawdon, Dene House, Deneside, Easington Colliery, Easington Village and South Hetton, Eden Hill, Haswell and Shotton, Horden North, Horden South, Howletch, Hutton Henry, Murton East, Murton West, Passfield, Seaham Harbour, Seaham North.
North Durham CC	66,796	4,742		Kevan Jones‡		Ed Parson†	Durham County Council: Annfield Plain, Bournmoor, Catchgate, Chester Central, Chester East, Chester North, Chester South, Chester West, Craghead and South Stanley, Edmondsley and Waldridge, Grange Villa and West Pelton, Havannah, Kimblesworth and Plawsworth, Lumley, North Lodge, Ouston, Pelton, Pelton Fell, Sacriston, South Moor, Stanley Hall, Tanfield, Urpeth.
North West Durham CC	72,166	1,144		Richard Holden†		Laura Pidcock‡	Durham County Council: Benfieldside, Blackhill, Burnhope, Burnopfield, Castleside, Consett East, Consett North, Consett South, Cornsay, Crook North, Crook South, Delves Lane, Dipton, Ebchester and Medomsley, Esh, Howden, Hunwick, Lanchester, Leadgate, St John’s Chapel, Stanhope, Tow Law and Stanley, Wheatbottom and Helmington Row, Willington Central, Willington West End, Wolsingham and Witton-le-Wear.
Sedgefield CC	64,325	4,513		Paul Howell†		Phil Wilson‡	Durham County Council: Bishop Middleham and Cornforth, Broom, Chilton, Ferryhill, Fishburn and Old Trimdon, Greenfield Middridge, Neville and Simpasture, New Trimdon and Trimdon Grange, Sedgefield, Shafto St Marys, Thornley and Wheatley Hill, West, Wingate, Woodham. Darlington Borough Council: Heighington and Coniscliffe, Hurworth, Middleton St George, Sadberge and Whessoe.

The Boundary Commission for England decided to retain these 7 constituencies for the 2010 election, with minor changes to realign constituency boundaries with the boundaries of current local government wards, and to reduce electoral disparity.

Name	Pre-2010 Boundaries	Post-2010 Boundaries
Bishop Auckland CC City of Durham CC Darlington BC Easington CC North Durham CC North West Durham CC Sedgefield CC	Parliamentary constituencies in Durham	Proposed Revision

The Boundary Commission for England submitted their final proposals in respect of the Sixth Periodic Review of Westminster Constituencies (the 2018 review) in September 2018. Although the proposals were immediately laid before Parliament they were not brought forward by the Government for approval. Accordingly, they did not come into effect for the 2019 election which took place on 12 December 2019, and which was contested using the constituency boundaries in place since 2010.

Under the terms of the Parliamentary Voting System and Constituencies Act 2011, the Sixth Review was based on reducing the total number of MPs from 650 to 600 and a strict electoral parity requirement that the electorate of all constituencies should be within a range of 5% either side of the electoral quota.

On 24 March 2020, the Minister of State for the Cabinet Office, Chloe Smith, issued a written statement to Parliament setting out the Government's thinking with regard to parliamentary boundaries.[5] Subsequently, the Parliamentary Constituencies Act 2020[6] was passed into law on 14 December 2020. This formally removed the duty to implement the 2018 review and set out the framework for future boundary reviews. The Act provided that the number of constituencies should remain at the current level of 650, rather than being reduced to 600, while retaining the requirement that the electorate should be no more than +/- 5% from the electoral quota.

The Act specified that the next review should be completed no later than 1 July 2023 and the Boundary Commission formally launched the 2023 Review on 5 January 2021.[7] See 2023 Periodic Review of Westminster constituencies for further details.

Primary data source: House of Commons research briefing - General election results from 1918 to 2019[8]

2019

The number of votes cast for each political party who fielded candidates in constituencies comprising Durham in the 2019 general election were as follows:

Party	Votes	%	Change from 2017	Seats	Change from 2017
Conservative	123,112	40.6%	5.3%	4	4
Labour	122,547	40.4%	14.2%	3	4
Brexit	25,444	8.4%	new	0	0
Liberal Democrats	21,356	7.0%	2.5%	0	0
Greens	5,985	2.0%	1.0%	0	0
Others	4,725	1.6%	3.0%	0	0
Total	303,169	100.0		7

A cell marked → (with a different colour background to the preceding cell) indicates that the previous MP continued to sit under a new party name.

• List of Parliamentary constituencies in Cleveland for Hartlepool and Stockton-on-Tees.
• List of Parliamentary constituencies in the North East (region)